Wu Xishi, Su Ronghua, Zhu Yunzhou, Huang Zhengren
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences No. 588, HeShuo Road, Jiading District Shanghai 201800 China
University of Chinese Academy of Sciences Beijing 100039 China.
RSC Adv. 2019 Jan 31;9(8):4203-4209. doi: 10.1039/c8ra09843c. eCollection 2019 Jan 30.
Boric acid was used as a source of complexing agent to change phase separation kinetics and dynamics of the resin-glycol system to regulate the pore structure of porous carbon. The results show that the addition of HBO in the resin mixtures can change the polymerization dynamics during curing of resin-glycol mixtures. For the complexation of HBO to diols, the size of the ethylene glycol-rich phase produced during the curing of the resin mixture increase with the increase of the content of HBO. Similarly, the pore size of porous carbon after pyrolysis increases with the increase of HBO content. The average pore size of resulting porous carbon can be regulated in the range from 15 to 2754 nm. These results reveal that HBO exhibited obvious effects in changing the pore structure of resin-glycol system during pyrolysis.
硼酸被用作络合剂的来源，以改变树脂 - 二醇体系的相分离动力学和动力学，从而调节多孔碳的孔结构。结果表明，在树脂混合物中添加HBO可以改变树脂 - 二醇混合物固化过程中的聚合动力学。对于HBO与二醇的络合，树脂混合物固化过程中产生的富含乙二醇相的尺寸随着HBO含量的增加而增加。同样，热解后多孔碳的孔径随着HBO含量的增加而增加。所得多孔碳的平均孔径可在15至2754nm范围内调节。这些结果表明，HBO在热解过程中对改变树脂 - 二醇体系的孔结构具有明显的作用。
